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Gingival retention cord for dental impressions - has retention portions joined elastically to it at intervals
Gingival retention cord for dental impressions - has retention portions joined elastically to it at intervals
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机译:用于牙印的牙龈固位线-固位部分以一定间隔弹性连接
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摘要
The gingival retention cord is for use when taking dental impressions, and comprises a single roughened twisted or woven thread (1) of metal, or synthetic or natural fibres. It incorporates retention portions (2) of metal, or synthetic or natural fibres, joined elastically to it at intervals. The design holds the recesses in the gum open for the impression material, so that the stumps below the surface can be used for the impression as well as the stumps of teeth that protrude well above the surface.
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